Added the parts of boost which we need to access shared_ptr and weak_ptr. This will allow for improved memory management of large volumes.

library/include/boost/config/compiler/sgi_mipspro.hpp

@@ -0,0 +1,30 @@
+//  (C) Copyright John Maddock 2001 - 2002. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  SGI C++ compiler setup:
+
+#define BOOST_COMPILER "SGI Irix compiler version " BOOST_STRINGIZE(_COMPILER_VERSION)
+
+#include "boost/config/compiler/common_edg.hpp"
+
+//
+// Threading support:
+// Turn this on unconditionally here, it will get turned off again later
+// if no threading API is detected.
+//
+#define BOOST_HAS_THREADS
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+
+#undef BOOST_NO_SWPRINTF
+#undef BOOST_DEDUCED_TYPENAME
+
+#define BOOST_NO_INITIALIZER_LISTS
+//
+// version check:
+// probably nothing to do here?
+
+